After several shares of the company's stock were sold, a profit of $1,320 was earned. the profit was 15% over a 30 day period. how much were the shares worth when they were originally purchased?

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

Solve: 3x+y=6 4x-2y=18 show all work !